Answer:
well what I think is that C is the correct answer
D only..
A is pure compound
B is mixture of compound and element
C is mixture of compounds
D is mixture of elements
I am going to have to say C. luster if not then B. Cleavage
Because of the tilt of the axis, causing some places to be a little farther than others, even if they are right next to each other, or halfway across the globe!
We first need to find the number of moles of gas in the container
PV = nRT
where;
P - pressure - 2.87 atm x 101 325 Pa/atm = 290 802.75 Pa
V - volume - 5.29 x 10⁻³ m³
n - number of moles
R - universal gas constant - 8.314 Jmol⁻¹K⁻¹
T - temperature - 230 K
substituting these values in the equation
290 802.75 Pa x 5.29 x 10⁻³ m³ = n x 8.314 Jmol⁻¹K⁻¹ x 230 K
n = 0.804 mol
the molar mass = mass present / number of moles
molar mass of gas = 56.75 g / 0.804 mol
therefore molar mass is 70.6 g/mol
